"I am deeply concerned about the growing epidemic of e-cigarette use in our children. We need to do all we can to protect the public from tobacco-related disease and death, and prevent e-cigarettes from becoming an on-ramp to nicotine addiction for a generation of youth," she tweeted Monday.

Trump cited his wife's concerns Wednesday, saying she is the mother of a "beautiful young man."

For example, officials with the state Department of Health Services have said that 24 of the 27 individuals with confirmed lung injuries in Wisconsin reported vaping oil with THC, the psychoactive ingredient in cannabis.

The newspaper's investigation also revealed that e-liquids sometimes contain flavoring chemicals known for causing irreversible lung damage. The chemicals, diacetyl and 2,3-pentanedione, were found in products, in some cases, even when companies advertised their products were diacetyl-free.

Vaping advocates now say the industry is being unfairly targeted.

"Destroying thousands of small businesses and sending ex-smokers back to smoking will do nothing to stop drug dealers from selling contaminated THC cartridges. A flavor ban will only lead to the creation of yet another multibillion-dollar black market that will operate with zero safety controls," Gregory Conley, president of the American Vaping Association, said in a statement.

He also predicted the ban would be a failure.

"In the history of the United States, prohibition has never worked. It didn’t work with alcohol. It hasn’t worked with marijuana. It won’t work with e-cigarettes," Conley said. "The President should meet with just one of the millions of American voters who have used flavors to quit smoking before moving forward on this draconian approach to regulation and public policy."

The leader of the Centers for Disease Control and Prevention applauded Trump's move.

"This is an important step in response to the epidemic of e-cigarette use among our Nation’s youth, and will help protect them from a lifetime of nicotine addiction and associated health risks. Clearing the market of non-tobacco-flavored products is important to reverse this alarming epidemic," CDC Director Robert Redfield said in a statement.